Vacuum cleaner roller



Sept 26 1950. E. GRzELczYK 2,523,823

VACUUM CLEANER -oLrBR Filed March 27,

mlm

` 'inn Patented Sept. 26, 1950 i "l e 2,523,823

lUNITED STATES enrifziarv OFFICE VACUUM CLEANER ROLLER Edmund Grzelczyk,T-wo Rivers, Wis.

Application March 27, 1948, Serial No. 17,487

My invention refers to vacuum cleaners and it has for its primary objectto provide an effective agitator roller for beating and brushing floorsor floor fabrics, incidental to sucking up the dust or lint, the rollerbeing provided with longitudinal flat sections, forming suction airVchannels associated with protecting substantially semi-circular beaterribs.

A further object of my invention is to provide the roller with yieldableblades, composed preferably of leather, and means for removablyattaching said blades to the roller.

With the above and other objects in View, which will appear as thedescription proceeds, the invention resides in' the novel construction,combination and arrangement of parts, substantially as hereinafterdescribed, and more particularly defined by the appended claim, it beingunderstood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claim.

In the accompanying drawings is illustrated one vcomplete example of thephysical embodiment of the present invention constructed according tothe best mode so far devised for the practical application of theprinciples thereof.

In the drawings: v

Fig. 1 represents a side elevation of a roller embodying the features ofmy invention.

Fig. 2 is an end view of the same, partly in section as indicated byline 2 2 of Fig. 1.

Fig. 3 is a top plan view of a portion of the roller, particularlyillustrating a lapped sectional blade.

Fig. 4 is a detail longitudinal sectional view through a fragment of theroller illustrating a key-strip for the blade, the same being indicatedby line 4 4 of Fig. 3.

Fig. 5 is an enlarged cross sectional View illustrating the flexibleblade attaching mechanism, the section being indicated by line 5 5 ofFig. 1.

Fig. 6 is a fragmentary sectional elevation illustrating the lappedblade pieces, the section being indicated by line 6 6 of Fig. 3.

Fig. 7 is a perspective view of the blade keystrip; and

Figure 8 is a perspective View illustrating a second species of theinvention, wherein the lever blades are fully lapped and the key stripis interlocked with the roller.

l. Claim. `(Cl. -141) Referring by characters to the drawings, l inydicates a suction roller composed of aluminum or other suitablematerial. The roller is provided With a standard shaft 2 suitablyjournaled in a suction housing, not shown. The central portion of theroller is provided with an annular groove 3 adapted to receive a drivingbelt (not shown) As best indicated in Figs. l and 2 of the drawing, theroller is provided with longitudinal at faces 4 4, which faces form airchannels and are encased in metallic substantially semi-circular guardor beater ribs 5 5, the same, for strengthening purposes, being providedwith reinforcing fins, as shown. These ribs are secured to the body ofthe roller by screws or other suitable means, and while two of said ribsare shown in connection with each flat face 4, it is understood that anynumber of the same may be employed.

The circular faces of the roller, paralleling the nat faces, areprovided with longitudinal slots 5 for the reception of a series oflapped leather blade sections l, which blade sections are positioned atopposite ends of the roller and diametrically disposed, whereby oneyieldable blade will engage the floor followed by the second yieldableblade.

As shown, the blades are preferably formed from a plurality of shortsections having their exposed sweeping portions lapping each other, as

indicated in Fig. 3 of the drawing. These lapped blade sections havetheir lower ends fitted into a longitudinally positioned spring clip 8,which spring clip is provided with a bottom offset shoe 8', and saidclip is also riveted to each leather blade section, as best illustratedin Fig. 5 of the drawing.

The blade sections, as a whole, are then inserted into the slots 5 andthereafter they are locked in said slot by a key-strip 9, the inner endof which key-strip is provided with an offset tongue 9', which tongue isnestedin a socket formed in the slot end, as best indicated in Figs. 3and 4 of the drawing.

The outer end of each key-strip is provided with a clamping iinger Illfor the end of the composite blade and said key-strip is then secured bya single countersunk screw ll, it being understood that this key-stripalso engages the offset shoe 8 of the blade clip 8, whereby the saidblades are firmly held in their functioning position.

Thus it will be noted that the ilexible blades may be removed forrenewal purposes by simply actuating the retaining screw Il.

From the foregoing description it is apparent that the roller, whenactuated at high rotative speed, will impart a beating operation uponthe oor coverings and also a brushing operation upon the same, while asuction current of air Will be caused to travel through the roller chan-3 nels 4 and collect up dust and loose fibre in the usual manner.

Fig. 8 illustrates a second species of my invention showinguninterrupted leather blade sections, wherein the same are fully lappedfrom end to end to insure strength. The key-strip 9, in this instance,shows the finger ID interlocking with a roller nger I0', to reinforcethe end of the roller.

I claim:

An agitator foria vacuum cleanercomprising a roller provided with acentral portion 'having an annular belt receiving groove therein, theroller being provided with a pair' of aligned 'channels on each sidethereof, the pairs of channels being diametrically opposite, spacedsubstantially semicircular guard ribs secur'ed to the roller aboutk thechannels, the roller also havinga longitudinally extending slot thereinon each side of the annular groove, said slots being diametri'callyopposite and lying between. the pairs of channels, a pair of blades eachincluding a series of over'- 15 Number Name Date 1,740,525 'Tyson Dec.24, 1929 1,894,361 Shank Jan. 17, 1933 FOREIGN PATENTS 2o Number CountryDate 602,961 Germany Sept. 19, 1934- lapping sections, a spring clipsecured to the inner end of each blade, the inner ends of the bladeswith the clips being fitted in the slots, each clip having alongitudinally extending offset shoe, a key strip tted into each slotoverlapping the offset shoe of the clip in the slot, and means securingthe key strips in place.

EDMUND GRZELCZYK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

